Spark Master Flash,
I wouldn't at all feel guilty about refusing to loan out tools.
I was always taught that part of being a Tradesperson was to have a full set of working tools.
I don't loan tools to anyone, period.
I had a brand new pair of Klien Cable cutters wrecked a few years back and that was the end of my lending tools!.
If you can't turn up with the correct tools for a job, should you even be there?.